Hi Dmytro, you can report a bug here on the forum or by e-mail at moi@moi3d.com . If you can send me the file I'll take a look at what's going on. If MoI is consuming CPU that means it is probably busy processing some complex part of the model and you might just need to let it crunch on it for 10 minutes or so to finish it.

The percent meter moves when different objects in the file are completed. If it has just one really complex object in the file then it is normal that it might stick at one number for a while.

- Michael